FR2439316A1 - IMPROVEMENT AT STARTING OF PUMPS OR TURBINE PUMPS - Google Patents

IMPROVEMENT AT STARTING OF PUMPS OR TURBINE PUMPS

Info

Publication number
FR2439316A1
FR2439316A1 FR7829899A FR7829899A FR2439316A1 FR 2439316 A1 FR2439316 A1 FR 2439316A1 FR 7829899 A FR7829899 A FR 7829899A FR 7829899 A FR7829899 A FR 7829899A FR 2439316 A1 FR2439316 A1 FR 2439316A1
Authority
FR
France
Prior art keywords
pumps
turbine
nominal
guard
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7829899A
Other languages
French (fr)
Other versions
FR2439316B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neyrpic SA
Original Assignee
Neyrpic SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Neyrpic SA filed Critical Neyrpic SA
Priority to FR7829899A priority Critical patent/FR2439316A1/en
Priority to BR7906649A priority patent/BR7906649A/en
Priority to ES485176A priority patent/ES485176A1/en
Priority to US06/086,675 priority patent/US4295782A/en
Publication of FR2439316A1 publication Critical patent/FR2439316A1/en
Application granted granted Critical
Publication of FR2439316B1 publication Critical patent/FR2439316B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B15/00—Controlling
    • F03B15/005—Starting, also of pump-turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/91—Reversible between pump and motor use

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

PROCEDE DE DEMARRAGE DES POMPES, EN PARTICULIER PROCEDE DE DEMARRAGE DES TURBINES-POMPES EN POMPES, LESDITES POMPES OU TURBINES-POMPES ETANT DU TYPE POSSEDANT UN DISTRIBUTEUR-DIFFUSEUR FIXE, ET SELON LEQUEL LA COURBE DE VARIATION DE LA PUISSANCE A VITESSE DE REGIME EN FONCTION DU DEBIT DE FLUIDE PASSE PAR UN MINIMUM SITUE ENTRE LE POINT DE DEBIT NUL ET LE POINT DE DEBIT NOMINAL. CONFORMEMENT A L'INVENTION, LE PROCEDE EST CARACTERISE PAR LA SEQUENCE CONSISTANT A METTRE EN ROTATION, A VITESSE INFERIEURE A LA VITESSE NOMINALE, LE MOTEUR DE LA POMPE, LE OU LES ROBINETS DE GARDE ETANT FERMES; LORSQUE LES PRESSIONS DE PART ET D'AUTRE DUDIT OU DESDITS ROBINETS DE GARDE ONT ATTEINT UNE VALEUR DIFFERENTIELLE SOIT NULLE SOIT SUFFISAMMENT FAIBLE POUR QUE SONLEUR OUVERTURE PUISSE ETRE EFFECTUEE SANS RISQUE D'ENDOMMAGEMENT, A OUVRIR CEUX-CI OU CELUI-CI D'UNE QUANTITE TELLE QU'IL(S) LAISSE(NT) PASSER, LORSQUE LE GROUPE ARRIVE AU VOISINAGE DE SA VITESSE NOMINALE, A OUVRIR ENFIN PROGRESSIVEMENT LE OU LESDITS ROBINETS DE GARDE JUSQU'A CE QU'IL(S) LAISSE(NT) PASSER LE DEBIT NOMINAL. L'INVENTION TROUVE SON UTILISATION DANS LE DOMAINE DES POMPES HYDRAULIQUES, ET EN PARTICULIER DANS CELUI DES TURBINES-POMPES UTILISEES DANS LES CENTRALES HYDRAULIQUES DESTINEES A LA FOURNITURE D'ENERGIE ELECTRIQUE.PUMP START-UP PROCESS, IN PARTICULAR PUMP-START-UP PROCESS, PUMPS OR TURBINE-PUMPS BEING OF THE TYPE WITH A FIXED DISTRIBUTOR-DIFFUSER, AND ACCORDING TO WHICH THE VARIATION POWER CURVE IN VARIATION OF FLUID FLOW RATES THROUGH A MINIMUM LOCATED BETWEEN ZERO FLOW POINT AND NOMINAL FLOW POINT. IN ACCORDANCE WITH THE INVENTION, THE PROCESS IS CHARACTERIZED BY THE SEQUENCE CONSISTING OF ROTATION, AT A SPEED BELOW THE NOMINAL SPEED, THE PUMP MOTOR, THE GUARD TAP (s) BEING CLOSED; WHEN THE PRESSURES ON EITHER SIDE OF THE SAID OR SIDED GUARD VALVES HAVE REACHED A DIFFERENTIAL VALUE EITHER NULL OR LOW ENOUGH SO THAT THEIR OPENING CAN BE CARRIED OUT WITHOUT RISK OF DAMAGE, TO OPEN EITHER THE SAME OR THAT QUANTITY SUCH AS IT (S) ALLOWS, WHEN THE GROUP ARRIVES IN THE NEIGHBORHOOD OF ITS NOMINAL SPEED, TO FINALLY OPEN THE SAID GUARD VALVE (S) UNTIL IT (S) ALLOWS (NT) TO GO THROUGH THE NOMINAL FLOW RATE. THE INVENTION FINDS ITS USE IN THE FIELD OF HYDRAULIC PUMPS, AND IN PARTICULAR IN THAT OF TURBINE PUMPS USED IN HYDRAULIC PLANTS INTENDED FOR THE SUPPLY OF ELECTRIC ENERGY.

FR7829899A 1978-10-20 1978-10-20 IMPROVEMENT AT STARTING OF PUMPS OR TURBINE PUMPS Granted FR2439316A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7829899A FR2439316A1 (en) 1978-10-20 1978-10-20 IMPROVEMENT AT STARTING OF PUMPS OR TURBINE PUMPS
BR7906649A BR7906649A (en) 1978-10-20 1979-10-16 PROCESS FOR STARTING PUMPS, IN PARTICULAR PROCESS FOR STARTING PUMP TURBINES IN PUMPS
ES485176A ES485176A1 (en) 1978-10-20 1979-10-19 Starting of pumps or turbopumps
US06/086,675 US4295782A (en) 1978-10-20 1979-10-19 Starting of pumps or turbopumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7829899A FR2439316A1 (en) 1978-10-20 1978-10-20 IMPROVEMENT AT STARTING OF PUMPS OR TURBINE PUMPS

Publications (2)

Publication Number Publication Date
FR2439316A1 true FR2439316A1 (en) 1980-05-16
FR2439316B1 FR2439316B1 (en) 1981-02-27

Family

ID=9213979

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829899A Granted FR2439316A1 (en) 1978-10-20 1978-10-20 IMPROVEMENT AT STARTING OF PUMPS OR TURBINE PUMPS

Country Status (4)

Country Link
US (1) US4295782A (en)
BR (1) BR7906649A (en)
ES (1) ES485176A1 (en)
FR (1) FR2439316A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485111A1 (en) * 1980-06-20 1981-12-24 Neyrpic Multi-stage turbine pump starter - uses cylindrical sluice valve between runner and diffuser in combination with gate valve on delivery pipe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH395898A (en) * 1962-08-30 1965-07-15 Escher Wyss Ag Method for commissioning a hydroelectric machine set
CH405080A (en) * 1962-11-24 1965-12-31 Hitachi Ltd Method of starting a pump or a pump turbine
FR2324895A1 (en) * 1975-09-19 1977-04-15 Neyrpic Creusot Loire Hydroelectric power plant starting system - using generator as motor to drive plant up to synchronous speed before water admission (BR 5.4.77)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309057A (en) * 1964-03-11 1967-03-14 Hitachi Ltd Method of starting operation of pumps and pump turbines
JPS4910206B1 (en) * 1969-09-12 1974-03-08
JPS5124431A (en) * 1974-08-16 1976-02-27 Hitachi Ltd Honpukidohoho oyobi sochi
JPS51146647A (en) * 1975-06-11 1976-12-16 Hitachi Ltd Pump starting of hydraulic machinery
JPS5395447A (en) * 1977-01-31 1978-08-21 Toshiba Corp Operation of reversible pump-turbine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH395898A (en) * 1962-08-30 1965-07-15 Escher Wyss Ag Method for commissioning a hydroelectric machine set
CH405080A (en) * 1962-11-24 1965-12-31 Hitachi Ltd Method of starting a pump or a pump turbine
FR2324895A1 (en) * 1975-09-19 1977-04-15 Neyrpic Creusot Loire Hydroelectric power plant starting system - using generator as motor to drive plant up to synchronous speed before water admission (BR 5.4.77)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485111A1 (en) * 1980-06-20 1981-12-24 Neyrpic Multi-stage turbine pump starter - uses cylindrical sluice valve between runner and diffuser in combination with gate valve on delivery pipe

Also Published As

Publication number Publication date
US4295782A (en) 1981-10-20
FR2439316B1 (en) 1981-02-27
ES485176A1 (en) 1980-05-16
BR7906649A (en) 1980-06-17

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Legal Events

Date Code Title Description
ST Notification of lapse